CN212653265U - Radial floating electric main shaft device - Google Patents
Radial floating electric main shaft device Download PDFInfo
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- CN212653265U CN212653265U CN202021332771.8U CN202021332771U CN212653265U CN 212653265 U CN212653265 U CN 212653265U CN 202021332771 U CN202021332771 U CN 202021332771U CN 212653265 U CN212653265 U CN 212653265U
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Abstract
The utility model relates to a burring subassembly technical field especially relates to a radial electric main shaft device that floats, include: an electric spindle; the axial fastening mechanism comprises a floating seat, the floating seat is arranged on the side surface of the electric spindle, a floating ring is arranged between the floating seat and the fixed seat, and a ball is arranged at the joint of the floating ring and the floating seat; at least one side of the floating seat is provided with a packing ring; at least one side of the floating ring is provided with a fastening spiral ring; the radial floating mechanism comprises a plurality of pistons, and the pistons are arranged on the side surface of the electric spindle; the piston ring, the piston and the fixed seat form a closed space which is communicated with the air pipe joint; and a dust cover is arranged between the electric main shaft and the fixed seat. The utility model provides an among the prior art electric main shaft mechanism be rigid structure's problem. The radial floating electric spindle device is a flexible structure by improving the axial fastening mechanism and adding the radial floating mechanism.
Description
Technical Field
The utility model relates to a burring subassembly technical field especially relates to a radial electric main shaft device that floats.
Background
The existing electric spindle mechanism is assembled by a fixed seat, an electric spindle, a cutter and the like. The electric spindle mechanism directly works by being connected with a power supply, is fixed in position and is a rigid structure. The electric spindle mechanism is only suitable for workpieces with consistent overall dimensions and relatively consistent gates.
However, in the domestic die casting field, the external dimension of the workpiece, the size of the gate and the size of the burr cannot be consistent, so that great difficulty is encountered in robot debugging production, and the cutting burr cannot be removed completely due to the fact that the external dimension of the workpiece or the size of the gate is irregular.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, the present invention provides a radial floating electric spindle device for solving the problem of the prior art that the electric spindle mechanism is a rigid structure. The radial floating electric spindle device is a flexible structure by improving the axial fastening mechanism and adding the radial floating mechanism.
To achieve the above and other related objects, the present invention provides a radially floating electric spindle device, including:
an electric spindle;
the axial fastening mechanism comprises a floating seat, the floating seat is installed on the side face of the electric spindle, a floating ring is installed between the floating seat and the fixed seat, and a packing ring is installed on at least one side of the floating seat; at least one side of the floating ring is provided with a fastening spiral ring;
the radial floating mechanism comprises a plurality of pistons, the pistons are all arranged on the side surface of the electric spindle, the pistons are all movably connected with piston rings, and the pistons can move along the radial direction of the piston rings; the piston ring, the piston and the fixed seat form a closed space which is communicated with the air pipe joint;
and a dust cover is arranged between the electric spindle and the fixed seat.
The radial floating electric spindle device is a flexible structure by improving the axial fastening mechanism and adding the radial floating mechanism. The electric spindle is fixed by an axial fastening mechanism in the axial direction so as to limit the axial movement of the electric spindle; the floating air source in the air pipe joint in the radial floating mechanism can drive the piston to move radially, so that the piston drives the electric spindle to move radially. On the premise of limiting the axial movement of the electric spindle, the radial movement (radial swing) of the electric spindle is not limited, so that the electric spindle is suitable for workpieces with different shapes, different sizes and irregular gate sizes. After the cutting tool assembled by the radial floating electric main shaft device cuts burrs, the burrs are removed completely, and the machining consistency is ensured.
The radial floating electric spindle device belongs to the field of automatic polishing and deburring of industrial robots. The radial floating electric spindle device is an application technology for removing product burrs by cutting off an upper sprue and a cloak part of a product (the cloak generated by the sprue and a mold insert on the product after an aluminum die casting is opened) by utilizing an air floatation principle.
The radial floating electric spindle device is of a flexible tool structure and can correct the irregularities according to the appearance of a workpiece, a sprue and a burr mantle; when the workpiece (or the prop and the electric spindle) is subjected to force in any radial direction, the piston moves under the force of the electric spindle; when the external force source disappears, the piston returns to the original position to drive the electric spindle to return to the original position. Therefore, the problem that the robot is difficult to debug is solved, and the problem that burrs are not removed cleanly due to different overall dimensions and different sizes and positions of the pouring gates in the process of removing the pouring gates and the cloak of the workpiece is solved. The floating effect of the radial floating electric spindle device can ensure that the sprue and the cloak burrs remained on the product are cut off under the condition of not damaging the product during cutting, and the radial floating electric spindle device can be used for cutting the high-precision product.
When a workpiece debugged by the robot is close to a cutter on the electric spindle, the pressure of the air source provided by the air pipe joint is adjusted by the pressure gauge, the inner radial pressure of the piston can be controlled by the air source pressure, the movement of the electric spindle is realized by the movement of the piston, the cutter can be driven to float radially by the movement of the electric spindle, the original rigidity problem is solved, the difficulty in the robot debugging process is reduced, and the qualification rate of products is improved.
When the electric main shaft is used for cutting, the floating seat and the packing ring are locked and tightly hold the electric main shaft, so that shaking is avoided. The floating ring is locked by the fastening spiral ring and is fixed on the fixed seat, so that the radial floating electric main shaft device is limited to move but not to swing radially.
The fixed seat is assembled with the piston ring and then assembled with the piston to form a sealed space, the air source provided by the air pipe joint continuously supplies air to enable the piston to be subjected to continuous inner radial pressure, the electric spindle is continuously kept at the central position under the condition that the electric spindle is not subjected to other radial external forces, and the pressure born by the piston is determined by the pressure given by the air source pressure regulating valve of the air pipe joint.
Sixteen pistons distributed on the circumference in the piston ring generate continuous and stable inner radial pressure through air pressure, and when an external force source (generally a workpiece) applies pressure to a cutter on the electric spindle from any radial position, a rotating force is generated by taking a steel ball in the middle of the floating seat and the floating ring as a medium; meanwhile, the piston can be pushed open by external force, so that the electric spindle moves in the radial direction the same as the external pressure application direction. When the external force source disappears, the piston can be pushed back through continuous air pressure, so that the electric spindle returns to the initial position (central position) again, and the rigid collision of the radial floating file machine can be effectively avoided.
Dust and flock can be generated during the work of the electric main shaft, and a dust cover is arranged between the electric main shaft and the fixed seat for preventing the service life of the main shaft from being influenced. The dust cover is generally made of rubber.
The fixing seat can adopt a design of being square around and connected by an arc, and the bottom plane is provided with a pin hole and a threaded hole, so that the fixing seat is attractive, practical and convenient to install.
In an embodiment of the present invention, the floating seat is fixedly connected to the tightening ring through a first screw. When the electric spindle is used for cutting, the floating seat and the packing ring are locked by the first screw (M4x12 hexagon socket head screw) and tightly hold the electric spindle, so that the electric spindle cannot shake.
In an embodiment of the present invention, a packing ring is installed on one side of the floating seat; and fastening spiral rings are arranged on the same sides corresponding to the floating rings. The function of fixation can be realized by single-side installation.
In an embodiment of the present invention, the floating ring includes a front floating ring and a rear floating ring, and the front floating ring and the rear floating ring are both installed between the floating seat and the fixing seat.
In an embodiment of the present invention, the connecting portions of the front floating ring and the rear floating ring and the floating seat are provided with balls. The front floating ring and the rear floating ring are matched, the floating seat is wrapped by steel balls (2mm steel balls) and is locked and fixed on the fixed seat by the fastening spiral ring, so that the floating seat can easily make radial motion, and the radial floating electric main shaft device can limit axial movement but not radial swing.
In an embodiment of the present invention, a seal ring is installed between the piston ring and the fixing seat. The radial floating mechanism is provided with a piston hole in the radial direction to install a piston, and then the periphery of the piston is sealed by using a sealing ring (an O-shaped sealing ring).
In an embodiment of the present invention, the pressing plate is installed at the flange end of the fixing base, and the dust cover is installed between the pressing plate and the fixing base.
Dust covers are arranged at the front and the back of the electric spindle and are fixed through a pressing plate, so that the inner space of a cutting tool assembled by the radial floating electric spindle device can be effectively sealed, dust and sundries are prevented from entering key parts of the cutting tool, and the durability of the electric spindle is effectively improved.
In an embodiment of the present invention, the fixing base is fixedly connected to the pressing plate through a second screw.
Dust covers are arranged at the front and the back of the electric spindle and are fixed through a pressing plate, the pressing plate is fixed through a second screw (an M4x8 hexagon socket head semicircle head screw), dust and sundries are prevented from entering key positions of the electric spindle, and the durability of the electric spindle is effectively improved.
In an embodiment of the present invention, the pistons are circumferentially distributed on a side surface of the electric spindle (generally, the pistons are circumferentially uniformly distributed on the side surface of the electric spindle, and the side surface refers to an outer ring circumference), and the number of the pistons is plural. The radial floating mechanism is provided with a plurality of piston holes in the radial direction to install the pistons, and then the periphery of the piston is sealed by using a sealing ring (an O-shaped sealing ring), so that the air pressure is applied from outside to inside to drive the pistons to generate continuous inner radial pressure.
In an embodiment of the present invention, the number of the pistons is 16.
As above, the utility model discloses a radial electric main shaft device that floats has following beneficial effect:
the radial floating electric spindle device is a flexible structure by improving the axial fastening mechanism and adding the radial floating mechanism. The electric spindle is fixed by an axial fastening mechanism in the axial direction so as to limit the axial movement of the electric spindle; the floating air source in the air pipe joint in the radial floating mechanism can drive the piston to move radially, so that the piston drives the electric spindle to move radially. On the premise of limiting the axial movement of the electric spindle, the radial movement (radial swing) of the electric spindle is not limited, so that the electric spindle is suitable for workpieces with different shapes, different sizes and irregular gate sizes. After the cutting tool assembled by the radial floating electric main shaft device cuts burrs, the burrs are removed completely, and the machining consistency is ensured.
The radial floating electric spindle device is of a flexible tool structure, can correct irregularities of workpiece appearance, pouring gates and burr flashes, solves the problem of difficulty in debugging of a robot, and avoids the problem that burrs are not removed cleanly due to different appearance sizes and different pouring gate sizes and positions in the process of removing the pouring gates and the flashes of workpieces. The floating effect of the radial floating electric spindle device can ensure that the sprue and the cloak burrs remained on the product are cut off under the condition of not damaging the product during cutting, and the radial floating electric spindle device can be used for cutting the high-precision product.
Drawings
Fig. 1 is a schematic view of a radial floating electric spindle device according to an embodiment of the present invention.
Fig. 2 is an enlarged schematic view of a point a in fig. 1 according to an embodiment of the present invention.
Fig. 3 is an enlarged schematic view of the embodiment of the present invention at B in fig. 1.
Fig. 4 is a side view of a radially floating electrical spindle assembly according to an embodiment of the present invention.
Fig. 5 is a cross-sectional view of a radial floating electric spindle arrangement in an embodiment of the present invention.
Description of the element reference numerals
1-an electric spindle; 2-a floating seat; 3-floating ring, 301-front floating ring, 302-rear floating ring; 4-a packing ring; 5-a fastening spiro ring; 6-a first screw; 7-a ball bearing; 8-a piston; 9-a piston ring; 10-a gas pipe joint; 11-a sealing ring; 12-a dust cover; 13-a platen; 14-a second screw; 15-fixed seat.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
Please refer to fig. 1 to 5. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.
Referring to fig. 1 and 5, the present invention provides a radial floating electric spindle device, including:
an electric spindle 1;
referring to fig. 3, the axial fastening mechanism includes a floating seat 2, the floating seat 2 is installed on a side surface of the electric spindle 1, and a floating ring 3 is installed between the floating seat 2 and a fixing seat 15; a packing ring 4 is arranged on one side of the floating seat 2; a fastening spiral ring 5 is arranged on the same side corresponding to the floating ring 3; the floating seat 2 is fixedly connected with the packing ring 4 through a first screw 6(M4x12 hexagon socket head screw);
referring to fig. 3, the floating ring 3 includes a front floating ring 301 and a rear floating ring 302, and both the front floating ring 301 and the rear floating ring 302 are installed between the floating seat 2 and the fixed seat 15; the joints of the front floating ring 301 and the rear floating ring 302 with the floating seat 2 are both provided with balls 7(2mm steel balls);
referring to fig. 2, the radial floating mechanism includes 16 pistons 8 distributed circumferentially, the pistons 8 are all installed on the side of the electric spindle 1, the pistons 8 are all movably connected with piston rings 9, and the pistons 8 can move along the radial direction of the piston rings 9; referring to fig. 5, the piston ring 9, the piston 8 and the fixing seat 15 form a sealed space, and the sealed space is communicated with a gas pipe joint 10(4mm90 degrees gas pipe joint 10) (a gas source distributes gas to 16 pistons 8 on average); a seal ring 11 (an O-shaped seal ring 11) is arranged between the piston ring 9 and the fixed seat 15;
referring to fig. 1, a dust cover 12 is mounted between the electric spindle 1 and the fixing base 15; a pressing plate 13 is mounted at the flange end of the fixed seat 15, and the dust cover 12 is mounted between the pressing plate 13 and the fixed seat 15; the fixed seat 15 and the pressing plate 13 are fixedly connected through a second screw 14 (an M4x8 hexagon socket head semicircle head screw).
The working process is as follows: when an external force source (generally a workpiece) applies pressure to a cutter on the electric spindle 1 from any radial position, a steel ball in the middle of the floating seat 2 and the floating ring 3 is used as a medium to generate a rotating force; at the same time, the piston 8 can be pushed open by an external force, so that the electric spindle 1 generates radial movement in the same direction as the external pressure. When the external force source disappears, the piston 8 can be pushed back through continuous air pressure, so that the electric spindle 1 returns to the initial position (central position) again, and the rigid collision of the radial floating file machine can be effectively avoided.
To sum up, the utility model discloses an improve axial fastening mechanism and increase radial relocation mechanism for radial unsteady electricity main shaft device becomes flexible construction. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A radially floating electric spindle assembly, comprising:
an electric spindle (1);
the axial fastening mechanism comprises a floating seat (2), the floating seat (2) is installed on the side face of the electric spindle (1), a floating ring (3) is installed between the floating seat (2) and a fixed seat (15), and a ball (7) is installed at the joint of the floating ring (3) and the floating seat (2); at least one side of the floating seat (2) is provided with a packing ring (4); at least one side of the floating ring (3) is provided with a fastening spiral ring (5);
the radial floating mechanism comprises a plurality of pistons (8), the pistons (8) are all installed on the side surface of the electric spindle (1), the pistons (8) are all movably connected with piston rings (9), and the pistons (8) can move along the radial direction of the piston rings (9); the piston ring (9), the piston (8) and the fixed seat (15) form a closed space, and the closed space is communicated with the air pipe joint (10);
and the dust cover (12) is arranged between the electric spindle (1) and the fixed seat (15).
2. A radially floating electrical spindle assembly as claimed in claim 1, wherein: the floating seat (2) is fixedly connected with the packing ring (4) through a first screw (6).
3. A radially floating electrical spindle assembly as claimed in claim 1, wherein: a packing ring (4) is arranged on one side of the floating seat (2); and a fastening spiral ring (5) is arranged on the same side corresponding to the floating ring (3).
4. A radially floating electrical spindle unit according to claim 1 or claim 3 in which: the floating ring (3) comprises a front floating ring (301) and a rear floating ring (302), and the front floating ring (301) and the rear floating ring (302) are both arranged between the floating seat (2) and the fixed seat (15).
5. A radially floating electrical spindle assembly as claimed in claim 4, wherein: and balls (7) are arranged at the connecting parts of the front floating ring (301) and the rear floating ring (302) and the floating seat (2).
6. A radially floating electrical spindle assembly as claimed in claim 1, wherein: and a sealing ring (11) is arranged between the piston ring (9) and the fixed seat (15).
7. A radially floating electrical spindle assembly as claimed in claim 1, wherein: the flange end of the fixed seat (15) is provided with a pressing plate (13), and the dust cover (12) is arranged between the pressing plate (13) and the fixed seat (15).
8. A radially floating electrical spindle assembly as claimed in claim 7, wherein: the fixed seat (15) is fixedly connected with the pressure plate (13) through a second screw (14).
9. A radially floating electrical spindle assembly as claimed in claim 1, wherein: the pistons (8) are circumferentially distributed on the side surface of the electric spindle (1), and the number of the pistons (8) is multiple.
10. A radially floating electrical spindle unit according to claim 1 or claim 9 in which: the number of the pistons (8) is 16.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021332771.8U CN212653265U (en) | 2020-07-08 | 2020-07-08 | Radial floating electric main shaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021332771.8U CN212653265U (en) | 2020-07-08 | 2020-07-08 | Radial floating electric main shaft device |
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| Publication Number | Publication Date |
|---|---|
| CN212653265U true CN212653265U (en) | 2021-03-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021332771.8U Active CN212653265U (en) | 2020-07-08 | 2020-07-08 | Radial floating electric main shaft device |
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| CN (1) | CN212653265U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530977A (en) * | 2021-07-30 | 2021-10-22 | 中国计量大学 | Split type flat axle air supporting shafting structure of style of calligraphy |
-
2020
- 2020-07-08 CN CN202021332771.8U patent/CN212653265U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113530977A (en) * | 2021-07-30 | 2021-10-22 | 中国计量大学 | Split type flat axle air supporting shafting structure of style of calligraphy |
| CN113530977B (en) * | 2021-07-30 | 2023-03-10 | 中国计量大学 | Split type flat axle air supporting shafting structure of style of calligraphy |
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